Split-lock replacer



Jan; 20, 1931.. J. SUNNEN 1,789,482

SPLIT LOCK REPLACER Filed July 8. 3,929

TTORNEYS Patented Jan, 20, 1931 UNITED STATES JOSEPH SUNNEN, OF STJLOUIS, MISSOURI SPLIT-LOQKfiEPLAGER Application filed July 8,1929. Serial no. 376,573, I

W Generally this washer is locked in position on the stem by .a split look comprising a pair of longitudinal halves havingtheir outer faces tapered upwardly and adapted to'be received in a peripheral groove, formed in said valve stem, near the lower e'iid thereof. This split lock, when arranged in; said groove, fits into an upwardly tapered seat formed in the underside of said washen Thus said fwasher v showing the tool being disengaged fromthe lockmembers. J I a i m Figurebisatop, plan view of the bifurserves to retain the lock members in operative positionand the latter hold'the washer I on the stem. V 1 I In the assemblage of thevalve structure, and particularly in the repla cementlof the split lock members, a great ,deal of'difiic'ulty members in proper position, while the valve spring is being released. This troublesome condition is partly due to the limited space in which the work is done and partly .to the peculiar construction of the valve assembly.

It is the purpose of the present invention to provide a split-lock replacer by means of which the. split lock-members canbe replaced with ease in ashort period of time and which split lock members in proper position during lock members as the latter are en a ed b the D 33 retaining washer. I Y

Furtherob'ects of the-invention are to pro vide a split'lock replacer having cooperating yielding arms for receiving and holding the split lock members during the-replacement gaged by the retaining Washer;

r provide a pair of cooperating yieldable arms having atapered seat for receiving the split hereinafter more fully described and claimed,

is experienced in maintaining said splitlock 1 ing the split look A, These arms are formed gagement and; disengagement of said arms replacer is so constructed that it willholdthe thereof, said arms being yieldable to release said lock members when the. latter are en-,

Still further objects of the invention are'to lock members inproperrelation, and toprovide a member cooperating with said arms and movable relativelyto said seat for look ing said split lock members inposition in said 7 7 seat, and to provide a handle by means of which said replacer can be-manipulated. With these and other objects in view, my lnventionrconsistsjin certain novel features of construction and arrangement of parts,

ings, in Wl1i0l1' r i v I Figure 1 is a side elevational view of the replacer, shown applied to thevalve assembly. Figure 2 is a top plan viewof the same,

Figure3 is an enlarged cross section taken on line 33 of Figure 1. j V

Figure 4- is a View similar to Figure ll but and illustrated in the accompanying drawcated end of the retainer member.

'. Referring by numerals to the aceompany v portions 12 of which'are shapedto form. an

open-ended upwardly tapering seat 14. The. general dimensions of this seat or recess are drawings, 10 indicates a holder consistmg of a pa1r of parallel arms 11,;the outer end suchas to receive freely the .two halves form yieldable and their extremeends 12 are flared outwardly so asto facilitate theiem withthe split lock members. a I

A retainer member or lock 15 is pivotally mounted at oneend between said arms 11 by means of a horizontally andtransversely disposed pin 16, the ends of. which are seated in 7 said arms 11. As shown in the drawings, this retainer member 15 extends downwardly 99 below arms 11 and'then forwardly and terminates in; a bifurcated end 17 which is disposed immediately below the lower flared-out end of recess or seat 14, and preferablycm axial therewith. .This bifurcated-end l7 is'so I shaped as to fit snugly within the lower end of said seat and holdthe split lock members thereto. The opening or notch formed by saidbifurcatedend is large-enough to clear freely the lower end of valve stem B. Y g

The intermediate portion 15 of said retainer member is disposed horizontally, preferably below the horizontal planes of both ends. A handle 18 has one end connected to this intermediate portion, preferably pivotal ly, by means of a pin 19, and said handle, extends rearwardly therefrom in a direction opposite to the bifurcated end 17. This handle is of sufiicient length to enable the user to manipulate the device in a convenient manner and is pivotally connected to the lock member or retainer 15 so that the replacer can be set at an angletothe longitudinal axis of said handle.

Thus the ends 12 of the arms 11 form an open-ended frustroconical seat into which the split lock members are inserted. In placing ,thelock members in positiontherein, the holder is inverted to bring the large end of sertion of the lower end ofthe stem and return it to normal or closed position and seat said lock members in the groove of the stem as soon as said groove is in position.

My improved replacer is of simple construction, is eflicien't in performing its intended functions, and: is easily manufactured.

While I have shown and described herein the preferred form of my invention, it is obvious that various changes in the construction and arrangement of parts of my replacer can be made and substituted for those herein shown without departing from the spirit of my invention;

I claim;

1. A split lock replacer comprising a handle, a retainer member disposed above said handle and secured'to one end thereof, anda pair of yieldable arms arranged above said retainer member and pivotally carried thereby, the ends of said arm-s being shapedto receive the split lock members of a valve assembly, saidarms and said retainer member being pivo'tally' movable relatively to each other to allow insertion of said loch"- members between the yieldable ends of said arms and to retain s'aid lock memberstherein, said arms being yieldable so as to become disengaged fromsaid lock members when the latter are en- 7 ed by the valvest'em,

y split lock replacer comprising abandl'e, auesliap ed resilient member, the ends of which are-s aped to form apes-vary tapering recess, and a retainer member pivotally mounted at one end to said U-shaped member for pivotal movement toward and from the plane thereof, the free end of said retainer member being arranged to cooperate with said ends for closing the large endof said recessand retain the lock members in position therein;

A split lock replacer comprising a pair of yieldable -.ar-Ins having their free ends shaped to form an upwardly tapering recess for receiving split lock members, and a retaining member pivotally mounted between said arms to move toward and from the plane thereof, said retaining member having a bifurcated end movableadjacent to the lower end of said recess for retaining the split lock members therein.

' 4. A split lock replacer comprising a hold- 5. A split lock replacer comprising a hold- 7 er havingyieldable portions shaped to form avertically disposed open-ended seat for re ceiving' the split lock members, a retaining member pivotally mounted at one end to said holder for movement toward and from the plane thereof, thereby providing a bottom for said seat, and retaining said split lock members therein, the end of said retaining member forming the bottom for said seat being slotted to provide clearance for the valve stem, and a handle secured to said retaining member and extending. therefrom in a direction opposite to said bifurcated end.

6. A split lock replacer comprising a mem ber having a pair of laterally yi'eldable arms,

, swingable at right angle thereto, thefree end of said member having a bifurcated end movable adjacent to the lower ends of said recessed arm so as to form a bottom for said recessed ends andhold said split lock members in position therein.

7. split lock replacer comprising a member having a pair of yieldable arms, the ends of which are provided with oppositely disposed semi-circular recesses tapering upwardly and cooperating to receive the split lock members, a retaining member mounted for movement toward and from the plane of said arms, said retaining member having a bifurcated end positionable adjacent to said.

recessed ends so as to'closthe weer end of the tapered seat formed'thereby and'retain said split lock members in position, and a handle fixed at one end to said retaining member and extending therefrom in a direction opposite to the bifurcated end thereof.

8. In a device of'the class described, a split lock replacer for valve stems comprising in combination a U-shaped resilient member, the ends of which are provided with oppositely disposed semi-circular recesses tapering upwardly and cooperating to receive the split lock members, said ends being yieldable to release said lock members when said U- shaped member is withdrawn from the valve.

stem, and means movable into engagement Wlth'thfi lower portions of sald tapered ends for closing the lower ends of said recesses and retaining said loc'k members in position.

9. In a device of'the class described, a split lock replacer for valve stems comprising a U-shaped resilient member, the ends of which are provided with oppositely disposed semicircular recesses tapering upwardly and 00- operating to receive the-split lock members, said ends being yieldable to release said lock 7 members when said U-shaped member is withdrawn from the valve stem, aretaining member operatively mounted on said resilient member and having one end enlarged to form a circular portion provided with a radial slot, said retaining member being operable to bring said enlarged end into engagement with the lower portions of said tapered ends for retaining said lock' members in position.

and a handle extending rearwardly from said retaining member for manipulating said. lock replacer. a In testimony whereof I hereunto aflix my signature this 29 day of June, 1929.

JOSEPH .SUNNEN. 

